Journal article
Impact of growing up in a warmer, lower pH future on offspring performance: transgenerational plasticity in a pan-tropical sea urchin
Coral Reefs, Vol.38(6), pp.1085-1095
2019
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Abstract
Transgenerational plasticity (TGP) may be an important mechanism for marine organisms to acclimate to climate change stressors including ocean warming (OW) and ocean acidification (OA). Conversely, environmental stress experienced by one generation may have detrimental latent effects on subsequent generations. We examined TGP in the embryos and larvae of the pan-tropical sea urchin, Tripneustes gratilla, in response to OA (pH 7.77), OW (+2 °C), or both OA and OW, OAW (+2 °C, pH 7.77) using a parent (F0) generation reared in treatments from the early juvenile to the mature adult, incorporating gonadogenesis and germline differentiation. Embryos and larvae of acclimated parents were reared in all four treatments to the 2-day-old pluteus stage. Larvae from OA and OAW parents were resilient to the effects of acidification, while larvae from OW and OAW parents were more tolerant to warmer temperature (29 °C). Parental acclimation, however, had predominantly negative effects on the size of offspring with reductions in larval arm lengths by as much as 21.4%, while eggs were up to 21.8% smaller in females raised at 29 °C. We highlight the complexity and trade-offs of TGP in this first transgenerational climate change study on a marine macroinvertebrate where the F0 generation was acclimated over their reproductive life.
Details
- Title
- Impact of growing up in a warmer, lower pH future on offspring performance: transgenerational plasticity in a pan-tropical sea urchin
- Creators
- Sam Karelitz (Author) - University of OtagoMiles D Lamare (Author) - University of OtagoBenjamin Mos (Author) - Southern Cross UniversityHattie De Bari (Author) - University of SydneySymon A Dworjanyn (Author) - Southern Cross UniversityMaria Byrne (Author) - University of Sydney
- Publication Details
- Coral Reefs, Vol.38(6), pp.1085-1095
- Publisher
- Springer Berlin Heidelberg
- Grants
- Australian Research Council
- Grant note
- This research was supported by a grant from the Australian Research Council and the NSW Environmental Research Trust.
- Identifiers
- 991012867300202368
- Academic Unit
- National Marine Science Centre
- Language
- English
- Resource Type
- Journal article